Tunable Optoelectronic Oscillator Based on a Polarization Modulator and a Chirped FBG

Author

Tang, Zhenzhou ; Pan, Shilong ; Zhu, Dan ; Guo, Ronghui ; Zhao, Yongjiu ; Pan, Minghai ; Ben, De ; Yao, Jianping

Author_Institution

Microwave Photonics Res. Lab., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

Volume

24

Issue

17

fYear

2012

Firstpage

1487

Lastpage

1489

Abstract

A wideband-tunable optoelectronic oscillator (OEO) is proposed and experimentally demonstrated based on a tunable microwave photonic filter (MPF) consisting of a polarization modulator, a chirped fiber Bragg grating, and a polarization beam splitter (PBS). By simply adjusting the polarization state of the signal before the PBS, the center frequency of the MPF is tuned. The proposed OEO is experimentally demonstrated. A high-purity microwave signal with a tunable frequency within 5.8-11.8 GHz is generated. The single-sideband phase noise of the generated signal is -104.56 dBc/Hz at 10-kHz offset.

Keywords

Bragg gratings; microwave filters; microwave photonics; optical beam splitters; optical fibre filters; optical fibre polarisation; optical modulation; optical noise; optical tuning; oscillators; phase noise; MPF; OEO; PBS; chirped FBG; chirped fiber Bragg grating; frequency 5.8 GHz to 11.8 GHz; high-purity microwave signal; polarization beam splitter; polarization modulator; polarization state; signal generation; single-sideband phase noise; tunable frequency; tunable microwave photonic filter; wideband-tunable optoelectronic oscillator; Fiber gratings; Frequency modulation; Microwave filters; Microwave oscillators; Microwave photonics; Microwave generation; microwave photonics; optoelectronic oscillator (OEO); polarization modulation;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2012.2205235

Filename

6222315